Finding the Fourth Proportional to 2,521.30, 3,781.41 and 788.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.30 : 3,781.41 = 788.98 : x
2. Step 2: Convert to fraction form
   2,521.30/3,781.41 = 788.98/x
3. Step 3: Cross multiply
   2,521.30x = 3,781.41 × 788.98
4. Step 4: Simplify right side
   2,521.30x = 2,983,456.86
5. Step 5: Solve for x
   x = 2,983,456.86/2,521.30
6. Step 6: Final answer
   x = 1,183.30